CD8+ T cells primed in the absence of CD4+ T cell help fail to develop a robust memory cell response. Zloza et al. now report that these CD4-unhelped CD8+ T cells can be rescued by activating their cell surface receptor NKG2D, which restores CD8+ T cell expansion and cytolytic activity during a recall response and protection in a mouse model of influenza infection.
- Andrew Zloza
- Frederick J Kohlhapp
- José A Guevara-Patiño